Scrubbing-machine.



n. ZlMMEBMAN. SCRUBBING MACHINE. APPLICATION FILED DEC-22, 1916-.

Patented Oct. 23,1917.

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SCRUBBING MACHINE.

APPLICATION FILED DECJZ. 19!.6. v 1,244,400. I Patented Oct. 23,1917.

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Specification of Letters Patent.

Application filed December 22, 1916. Serial No. 138,415.

To all whom it may concern: 7

.Be it known that 1, ROBERT ZIMMERMAN, a citizen of the United States, residing at Dorchester, inthe county of Sufi'olk and State of Massachusetts, have invented new and useful Improvements in Scrubbing-Machines, of which the following is a specification. v

This invention relates to improvements in scrubbing machines and has particular application to a combined scrubbing and mopping machine.

In carrying out the present invention, it is my purpose to provide a machine of the class described whereby a floor or other surface may be thoroughly scrubbed and then mopped so that the surplus liquid may be removed from such floor.

It is .also my purpose to provide a machine of the class described which will embrace the desired features of simplicity, efliciency and durability, which may be readily dismantled for the purposes of cleaning and repairing, and wherein the component parts will be so arranged and correlated as to reduce the possibility of derangement to a minimum.

A further object of my invention is to provide a floor scrubbing machine wherein the scrubbing mechanism, may be rendered in active so that the machine may be used for,

mopping purposes only and wherein the mopping mechanism may be rendered inactive so that the machine may be used for scrubbing purposes only.

With the above and other objects in view, the invention consists in the construction,

combination, and arrangement of parts therethrough.

Fig. 4 is acrosssectional view'through the machine. Fig.5 is a similar view taken on a plane parallel with Fig. 4. p f Referring now to the drawings in detail,

1 designates abrush housing having the lower end open and the end walls formed with vertical slots 2, respectively, while 3 designates a mop housing having the lower end open and one side wall formed with a slot 4. The housing 1 is spaced apart from the housing 3 and is connected with the housing 3 by means of horizontal side bars 6 arranged upon opposite sides of the machine and each having the ends thereof inturned, as at 7, and fastened to the outer sides of the housing 1 and the housing 3, respectively. The end walls of the housings 1 and 3 are connected to the side bars 6 by means of studs 8 so as to avoid-the ossibility of accidental disconnection o the parts. Arranged within the space between the housings 1 and 3 is a structure formed to provide a water reservoir 5 and a receptacle 9 arranged upon one side of the reservoir and stepped downwardly therefrom. The outer walls of the water reservoir 5 and the receptacle 9 are placed in face to face con- Patented @ct. 23, 191?.

tact with the inner walls of the housings 1 I and 3, respectively, and the outer wall of the receptacle 9 is formed with a slot that 'alines with the slot 1 to establish communication between the housing 3 and the receptacle 9, while the water reservoir 5 is formed, at itslower end, with a discharge opening 10 registering with an opening 11 formed in the inner wall of the housing. 1 and connected with the opening 11 and extending toward the other wall of the housing 1 is a supply pipe 12. Extending across the housing 1 at the lower end thereof is a sprinkler tube 13 to which the outer end of the supply pipe 12 is connected. Slidably mounted upon the side wall of the reservoir 5 adjoining the housing 1 and arranged between the housing and the water reservoir is a valve blade 14' having the lower end formed with an opening Y15 and the upper end formed with a finger hold 16. The opening 15 is adapted to be moved into and out of registration with the openings 10 and 11 so communication between the water res ervoir and .the sprinkler tube may be established and cut off. The top of the water reservoir is closed by a cover 16 detachably connected to the reservoir by means of suitable fastening devices 17. Slidably mounted in the slots 2, respectively, are blocks 18, and journaled in the blocks 18 is a shaft 19 that extends through the housing 1. Mounted upon the shaft 19 within the housing 1 is a brush 20, while fixed upon one end of the shaft is a pinion 22. Rotatably mounted upon stub shafts carried by the cross bars 6 are wheels 23 that support the machine upon the floor or other surface to be cleaned, and fixedupon the stub shaft carrying the Wheel 23 adjacent to the pinion 22 is a pinion 24: that meshes with the pinion 22 so that in the movement of the machine over the floor motion will be transmitted to the shaft 19 to revolve the brush 20. Pivoted between its ends upon each end Wall of the housing 1 adjacent to the top of the housing is a lever 25 and the inner ends of the levers 25 are connected with the upper extremity of the respective blocks 18. Pressing upon the remaining end portions of the levers 25 are springs 26 carried by the end walls of the housing 1 and these springs act upon the levers to hold the blocks 18 normally in the lower end of the slots 22 so that the brush 20 will bear upon the floor. Formed in the end walls of the housing 3 are vertical slots 27, and slidably mounted within the slots 27 respectively are blocks 28. J ournaled in the blocks 28 is a shaft 29 carrying a drum 30 that extendsacross the housing 3. Pivoted to each end wall of the housing 3 adjacent to the top of the latter is a lever 31, and the inner ends of the levers 31 are connected with the blocks 28, while the outer ends project beyond the housing 3. Extending across the receptacle 9 adjacent the upper end thereof is a hinged cover 32. Extending across the receptacle 9 adjacent the water reservoir 5 is a rod 33, and rotatably mounted upon the rod 33 is a roller 34. Trained over the drum 30 and the roller 34 is an endless mopping belt 35 having the outer surface covered with felt or analogous material. This mopping belt 35 is adapted to contact the surface to be cleaned and mop up the water therefrom as it passes over the drum 30 when said drum is in its lower position. As the belt is rotated, as hereinafter described, the water is discharged therefrom as the belt passes over roller 34 and falls into the receptacle 9 located immediately below. An ranged above and below the bottom run of the belt 35 are shafts 36 and 37 respectively, that extend across the housing 3 and have the ends thereof journaled in the end walls of the housing. The ends of the shafts 36 and 37 at one end of the housing 3 are equipped with friction wheels 38, and the friction wheel on the shaft 37 frictionally engages the friction wheel on the shaft 36, while the friction wheel on the last named shaft engages the periphery of the adjacent Wheel 23, so that in the movement of the machine over the floor motion will be transmitted to the shafts 36 and 37. Fixed upon these shafts 36 and 37 within the housing 3 and engaging the upper and and the machine moved over the floor or other surface to be cleaned, and in the movement of the machine motion is transmitted to the brush 20 to scrub the floor, while the outer side of the belt 35 rubs over the floor succeeding the scrubbingv thereof to remove the surplus water therefrom. When the voke 40 is swung downwardly into engage- A inent with the outer ends of the levers 31 the blocks 28 are moved upwardly within the slots 27 so as to elevate the shaft 29 and render the mopping mechanism inactive. On the other hand, when the yoke is swung into engagement with the outer ends of the levers 25, the blocks 18 are elevated to lift the brush 20 out of engagement with the floor. Thus, the mopping mechanism and scrubbing mechanism may be rendered inactive independently of each other.

While I have herein shown and described the preferred form of my invention by way of illustration, I wish it to be understood that I do not limit or confine myself to the precise details of construction herein described and delineated, as modification and variation may be made within the scope of the claims and without departing from the spirit of the invention.

I claim:-

1. In a device of the character described, a frame, supporting wheels mounted thereon, a brush and a mop mounted in said frame, separate means for lifting said brush and said mop independently of each other, a handle pivoted on said frame and adapted to engage one of said lifting means to lift the brush when swung to one extremity of its path of movement and adapted to engage the other of said lifting means to lift the mop when moved to the other extremity of its path of movement.

2. In a device of the character described, a frame, supporting wheels mounted thereon, pairs of sliding blocks mounted in said frame for vertical movement, spring. means for holding said blocks in theirlowermost positions, a brush rotatably mounted on one moved to one extremity of its path of movepair of blocks,'a mop mounted on the other ment and adapted to engage the other of pair of blocks separate means for lifting said lifting means to lift said mop when 10 each pair of lilocks independently of the moved to the other extremity of its path of 5 other, a handle pivotally mounted in said movement.

frame and adapted to engage one of said In testimony whereofI afix my signature. lifting means to lift said brush when- ROBERT ZIMIERMAN. 

